patch to candidate for stable kernel 4.10

[Mkrtchyan, Tigran]

Dear stable kernel maintainers,

Please consider commit

f17f8a14e82cdf34cd6473e3644f3c672b3884f6

to be included into 4.10 kernel. As long as it crashes 
kernels used by some distors, we have to disable corresponding
functionality on the NFS servers. 

Thanks in advance,
   Tigran.